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Russia using nuclear icebreakers to escort ships near Estonia as Baltic Sea freezes

The nuclear-powered “Sibir” is one of the largest icebreakers in the world. Photo: NurPhoto/Contributor via Getty Images
The nuclear-powered “Sibir” is one of the largest icebreakers in the world. (NurPhoto/Contributor via Getty Images)

Frozen Baltic Sea waters have led to slowed Russian exports.